CN113381163B

CN113381163B - terminal

Info

Publication number: CN113381163B
Application number: CN202010117703.8A
Authority: CN
Inventors: 赖奔; 王宇辉; 马宁; 俞泉; 王克猛; 龙腾
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2023-11-10
Anticipated expiration: 2040-02-25
Also published as: EP4096018A1; WO2021169500A1; CN117691339A; EP4096018A4; CN113381163A; BR112022017019A2; US20230155275A1

Abstract

The embodiment of the application provides a terminal, which relates to the technical field of communication and can reduce the directivity coefficient of an antenna when the layout position of a Wi-Fi antenna is limited, so that the transmitting power of the antenna is improved. The terminal comprises: a terminal body portion and an electronic accessory portion; be provided with Wi-Fi antenna device on the terminal main part, wi-Fi antenna device has closed slot antenna, and closed slot antenna includes main part straight line gap and respectively from main part straight line gap both ends to same side first gap and the second gap that the extension formed, first gap and second gap all perpendicular to main part straight line gap, and electronic accessory part is located the side in main part straight line gap.

Description

Terminal

Technical Field

The application relates to the technical field of communication, in particular to a terminal.

Background

Because of the uncertainty of the self-posture of the terminal in use, the antenna needs to reduce the self-directivity coefficient as much as possible in the process of realizing wireless communication so as to better cover the requirements of communication in all directions. Meanwhile, for wireless fidelity (Wireless Fidelity, wi-Fi) antennas, it is desirable to have a lower directivity coefficient due to industry regulations, otherwise it is desirable to have a lower antenna transmit power. For a traditional Wi-Fi antenna of a terminal, the optimization of the directivity coefficient of the antenna is mainly realized by adjusting the layout position of the antenna in the whole machine. If the antenna layout position is limited, the antenna is affected by the environment of the whole machine, and the directivity coefficient is difficult to control, so that when the antenna layout position is limited, the traditional Wi-Fi antenna can limit the transmitting power of the antenna due to the higher directivity coefficient of the antenna.

Disclosure of Invention

The technical scheme of the application provides a terminal, which can reduce the directivity coefficient of an antenna when the layout position of a Wi-Fi antenna is limited, so that the transmitting power of the antenna is improved.

In a first aspect, the present application provides a terminal, including: a terminal body portion and an electronic accessory portion; be provided with Wi-Fi antenna device on the terminal main part, wi-Fi antenna device has closed slot antenna, and closed slot antenna includes main part straight line gap and respectively from main part straight line gap both ends to same side first gap and the second gap that the extension formed, first gap and second gap all perpendicular to main part straight line gap, and electronic accessory part is located the side in main part straight line gap.

Optionally, the terminal body portion is a flat plate-like structure, the terminal body portion includes two opposite main surfaces and a side surface connecting the two main surfaces, an antenna slot of the enclosed slot antenna is provided on one of the two main surfaces, and the electronic accessory portion is detachably connected to the opposite position of the side surface of the terminal body portion.

Optionally, the antenna slot of the closed slot antenna is in a U shape or an unsealed U shape.

Optionally, the terminal main body part is a tablet computer, and the electronic accessory part is a handwriting pen.

Optionally, the terminal is a notebook computer, the terminal main body part is a computer main body part, and the terminal main body part comprises an upper shell, a lower shell and four side shells connected with the upper shell and the lower shell which are opposite; the electronic accessory part is a display screen, the edge of the terminal main body part at one side of the side shell is provided with a rotating shaft area, and the electronic accessory part is connected with the terminal main body part in the rotating shaft area in a rotating shaft mode; the closed slot antenna is positioned on the side shell corresponding to the rotating shaft area.

Optionally, in the storage state of the notebook computer, the display surface of the electronic accessory part is opposite to the upper shell of the terminal main body part; the upper housing of the terminal body is a floor electrically connected to the enclosed slot antenna.

Optionally, the antenna slot of the closed slot antenna is non-closed in a shape of a Chinese character 'hui'.

Alternatively, the end of the antenna slot of the enclosed slot antenna is located on the side of the antenna slot near the upper housing of the terminal body portion.

According to the terminal provided by the embodiment of the application, the first slot and the second slot bent towards the same side are arranged at the two ends of the straight slot of the main body, so that the electric fields at the first slot and the second slot have the mutual offset effect, and the radiation intensity of the antenna in the same direction can be weakened when the layout position of the Wi-Fi antenna is limited, namely the directivity coefficient of the antenna is reduced, and the transmitting power of the antenna is improved.

Drawings

Fig. 1 is a schematic structural diagram of a tablet computer in the prior art;

FIG. 2 is a Wi-Fi antenna radiation pattern of the tablet computer of FIG. 1;

FIG. 3 is a side view of a notebook computer according to the prior art;

FIG. 4 is a schematic perspective view of the notebook computer of FIG. 3;

FIG. 5 is an enlarged schematic view of the area B in FIG. 4;

FIG. 6 is an enlarged schematic view of a side of the notebook computer in FIG. 3;

FIG. 7 is a schematic cross-sectional view of the AA' direction in FIG. 6;

FIG. 8 is a Wi-Fi antenna radiation pattern of the notebook computer of FIG. 3;

fig. 9 is a schematic perspective view of a terminal according to an embodiment of the present application;

FIG. 10 is a top view of the terminal of FIG. 9;

fig. 11 is a Wi-Fi antenna radiation pattern of the terminal of fig. 10;

FIG. 12 is a top view of another terminal according to an embodiment of the present application;

fig. 13 is a Wi-Fi antenna radiation pattern of the terminal of fig. 12;

fig. 14 is a schematic perspective view of another terminal according to an embodiment of the present application;

fig. 15 is an enlarged schematic view of the enclosed slot antenna of fig. 14;

FIG. 16 is a schematic view of the EE' direction cross-section structure in FIG. 15;

fig. 17 is a Wi-Fi antenna radiation pattern of the terminal of fig. 14.

Detailed Description

The terminology used in the description of the embodiments of the application herein is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application.

Before describing the embodiments of the present application, first, the problems in the prior art will be briefly described, as shown in fig. 1, fig. 1 is a schematic structural diagram of a tablet computer in the prior art, fig. 2 is a Wi-Fi antenna radiation pattern of the tablet computer in fig. 1, fig. 1 is a schematic structural diagram of a tablet computer, a handwriting pen is disposed on a side surface of a tablet computer main body 1', and a position of a Wi-Fi antenna 3' is limited to be located close to the handwriting pen due to other reasons such as appearance, and generally, a straight-line closed slot antenna design is adopted. Taking a Wi-Fi antenna of 2.4GHz as an example, as shown in fig. 2, due to the influence of the stylus pen on the radiation of the antenna, the difference of the radiation intensities at the upper side and the lower side of the antenna slot is larger, that is, the directivity coefficient of the antenna is higher, and reaches 7.5dBi. In addition, as shown in fig. 3 to 8, fig. 3 is a side view of a notebook computer in the prior art, fig. 4 is a schematic perspective view of the notebook computer in fig. 3, fig. 5 is an enlarged schematic view of a region B in fig. 4, fig. 6 is an enlarged schematic view of a side face of a portion of the notebook computer in fig. 3, fig. 7 is a schematic view of a cross-section AA 'in fig. 6, fig. 8 is a radiation pattern of a Wi-Fi antenna of the notebook computer in fig. 3, the notebook computer includes a screen 4' and a main body 5', the main body 5' includes a side face housing 53 'provided with an upper housing 51' and a lower housing 52', and a side face housing 53' close to a rotation axis, as shown in fig. 5, the screen 4 'is omitted in fig. 5, a region C is provided with a Wi-Fi antenna 6' in the side face housing 53 'close to the rotation axis, and the specific structure of the Wi-Fi antenna 6' is omitted in fig. 5, as shown in fig. 6 and fig. 7, and the product appearance is generally laid out in the region C is considered to be kept as far as possible. The conventional Antenna 6 'is designed in the form of an Inverted-F Antenna (IFA), with a feed position D between the Antenna 6' and the lower housing 52', the lower housing 52' being grounded. Taking a Wi-Fi antenna of 2.4GHz as an example, as shown in fig. 8, due to the influence of the screen 4' on the antenna, the difference of the radiation intensities on the upper and lower sides of the antenna is larger, that is, the directivity coefficient of the antenna is higher, and reaches more than 8 dBi.

An embodiment of the present application is described below, as shown in fig. 9 and fig. 10, fig. 9 is a schematic perspective view of a terminal in the embodiment of the present application, and fig. 10 is a top view of the terminal in fig. 9, where the embodiment of the present application provides a terminal, including: a terminal body part 1 and an electronic component part 2; the Wi-Fi antenna device is arranged on the terminal main body part 1, the Wi-Fi antenna device is provided with a closed slot antenna 3, the closed slot antenna 3 comprises a main body straight slot 30, a first slot 31 and a second slot 32 which are respectively bent from two ends of the main body straight slot 30 to the same side and extend, the first slot 31 and the second slot 32 are perpendicular to the main body straight slot 30, and the electronic accessory part 2 is located on the side face of the main body straight slot 30.

Specifically, the two sides of the slot of the enclosed slot antenna 3 have uniform electric field directions, such as the structure shown in fig. 10, the electric field direction at the main body straight slot 30 is from top to bottom, the electric field direction at the first slot 31 is from left to right, and the electric field direction at the second slot 32 is from right to left, and since the first slot 31 and the second slot 32 are opposite, the electric fields at the first slot 31 and the second slot 32 have a mutual cancellation effect, not a superposition effect, so that the radiation enhancement of the antenna in the same direction is weakened. Therefore, when the installation position of the enclosed slot antenna 3 is defined, although the radiation direction of the enclosed slot antenna 3 is affected by the electronic component part 2 on the side of the main body straight slot 30 thereof, the directivity coefficient of the antenna can be reduced by the slot bending design of the enclosed antenna 3. As shown in fig. 11, fig. 11 is a radiation pattern of the Wi-Fi antenna of the terminal in fig. 10, and it can be seen that, compared with fig. 2, the Wi-Fi antenna of the terminal in fig. 11 has a directivity coefficient lower, approaching 3.5dBi, than that of a linear slot antenna.

Alternatively, the terminal body portion 1 is a flat plate-like structure, the terminal body portion 1 includes two opposite main surfaces and a side surface connecting the two main surfaces, an antenna slot of the enclosed slot antenna 3 is provided on one of the two main surfaces, and the electronic accessory portion 2 is detachably connected to the opposite position of the side surface of the terminal body portion 1. When the enclosed slot antenna 3 is required to be located at the position shown in fig. 9 and 10, if the electronic component part 2 is disposed at the side surface of the terminal main body part 1, the antenna directivity of the enclosed slot antenna 3 is adversely affected, however, in the embodiment of the present application, the adverse effect of the electronic component part 2 on the antenna directivity is reduced and the directivity coefficient of the antenna is reduced due to the bending disposition of the enclosed slot antenna 3.

Alternatively, as shown in fig. 10 and fig. 12, fig. 12 is a top view of another terminal in an embodiment of the present application, where the antenna slot of the closed slot antenna 3 is in a "U" shape or an unsealed "back" shape.

Specifically, in the structure shown in fig. 10, the main body straight slot 30, the first slot 31, and the second slot 32 form a "U" -shaped structure to form the enclosed slot antenna 3. In the structure shown in fig. 12, the antenna slot of the enclosed slot antenna 3 includes, in addition to the main body straight slot 30, the first slot 31, the second slot 32, a third slot 33 and a fourth slot 34, the third slot 33 is bent and extended rightward from the lower end of the first slot 31, the fourth slot 34 is bent and extended leftward from the lower end of the second slot 32, and the main body straight slot 30, the first slot 31, the second slot 32, the third slot 33 and the fourth slot 34 form a non-enclosed "back" type structure to form the enclosed slot antenna 3. As shown in fig. 13, fig. 13 is a radiation pattern of the Wi-Fi antenna of the terminal in fig. 12, and it can be seen that, compared with fig. 2, the Wi-Fi antenna of the terminal in fig. 13 has a directivity coefficient lower, approaching 3.5dBi, than that of a linear slot antenna.

Alternatively, as shown in fig. 9, 10 and 12, the terminal body part 1 is a tablet computer, and the electronic accessory part 2 is a handwriting pen. The handwriting pen can be adsorbed on the side of the tablet computer, at the moment, the antenna slot of the closed slot antenna 3 is positioned close to the rear shell of the tablet computer and is close to the side edge on which the handwriting pen is adsorbed, when the handwriting pen is adsorbed on the tablet computer, the adverse effect of the handwriting pen on the directivity of the antenna is reduced due to the bending setting mode of the closed slot antenna 3, and the directivity coefficient of the antenna is reduced.

Alternatively, as shown in fig. 14, 15 and 16, fig. 14 is a schematic perspective view of another terminal according to an embodiment of the present application, fig. 15 is a schematic enlarged view of a closed slot antenna in fig. 14, fig. 16 is a schematic sectional view of EE' in fig. 15, the terminal is a notebook computer, the terminal body 1 is a computer body, and the terminal body 1 includes an upper case 11, a lower case 12, and four side cases 13 connecting the upper case 11 and the lower case 12; the electronic fitting part 2 is a display screen, the edge of the terminal main body part 1 on one side of the side shell 13 is provided with a rotating shaft area 4, and the electronic fitting part 2 is connected with the terminal main body part 1 in the rotating shaft area 4 in a rotating shaft manner; the enclosed slot antenna 3 is located on the side housing 13 corresponding to the rotation shaft region 4.

Specifically, for example, the antenna slot of the enclosed slot antenna 3 may be a slot of the side case 13, or the antenna slot of the enclosed slot antenna 3 may be a slot of a conductive plate provided on the side case 13. The enclosed slot antenna 3 also includes a main body straight slot 30, and a first slot 31 and a second slot 32 which are formed by bending and extending from both ends of the main body straight slot 30 to the same side, wherein the first slot 31 and the second slot 32 are perpendicular to the main body straight slot 30, and the electronic component part 2 is located on the side surface of the main body straight slot 30. Since the position of the enclosed slot antenna 3 is limited on the side housing 13 corresponding to the rotation shaft area 4, the display screen may have an adverse effect on the antenna directivity of the enclosed slot antenna 3, and in the embodiment of the present application, since the electric fields at the first slot 31 and the second slot 32 have the mutual cancellation effect, the radiation enhancement of the antenna in the same direction is weakened, that is, the directivity coefficient of the antenna is reduced, so as to improve the transmitting power of the antenna.

Alternatively, as shown in fig. 14, 15 and 16, in the storage state of the notebook computer, the display surface of the electronic accessory part 2 is opposed to the upper case 11 of the terminal main body part 1; the upper case 11 of the terminal body 1 is a floor electrically connected to the enclosed slot antenna 3.

Specifically, when the upper case 11 of the terminal body 1 is a floor electrically connected to the enclosed slot antenna 3, that is, the upper case 11 of the terminal body 1 is grounded. The upper shell 11 is located between the display screen and the closed slot antenna 3, the radiation influence of the display screen on the closed slot antenna 3 is that more radiation beams are upwards, and the floor has a reflecting effect on the radiation of the antenna, namely, the upper shell 11 can enable the radiation beams of the antenna to be downwards reflected, so that the adverse influence of the display screen on the radiation direction of the closed slot antenna 3 can be reduced by arranging the upper shell 11 as the floor, the directivity coefficient of the antenna is further reduced, and the radiation power of the antenna is improved.

Alternatively, as shown in fig. 14, 15 and 16, the antenna slot of the enclosed slot antenna 3 is in a non-enclosed "back" shape. Since the height of the side housing 13 of the notebook computer is generally smaller, in order to increase the antenna length to meet the requirement, the antenna slot of the closed slot antenna 3 is provided with a non-closed "back" shape, that is, the closed slot antenna 3 further includes a third slot 33 and a fourth slot 34, the third slot 33 is bent and extended from the upper end of the first slot 31 to the right, the fourth slot 34 is bent and extended from the upper end of the second slot 32 to the left, and the main body straight slot 30, the first slot 31, the second slot 32, the third slot 33 and the fourth slot 34 form a non-closed "back" shape structure to form the closed slot antenna 3.

Alternatively, as shown in fig. 14, 15 and 16, the ends of the antenna slot of the enclosed slot antenna 3 are located on the side of the antenna slot close to the upper case 11 of the terminal body part 1, i.e., the ends of the third slot 33 and the fourth slot 34 are located on the side of the body straight slot 30 close to the upper case 11, for example, where the ends of the third slot 33 communicate to the upper case 11, where a feeding point 35 is provided, and feeding is achieved by the feeding point 35 and the upper case 11, respectively. As shown in fig. 17, fig. 17 is a Wi-Fi antenna radiation pattern of the terminal in fig. 14, and it can be seen that, compared with fig. 8, the Wi-Fi antenna directivity coefficient of the terminal in fig. 17 is lower, close to 5.2dBi, and lower than the IFA antenna directivity coefficient.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A terminal, comprising:

a terminal body portion, wherein the terminal body portion is a flat plate-like structure including two opposite main surfaces, and a side surface connected circumferentially between the two main surfaces, the side surface including opposite first and second side surfaces;

the Wi-Fi antenna device is arranged on the terminal main body part, the Wi-Fi antenna device is provided with a closed slot antenna, the antenna slot of the closed slot antenna comprises a main body straight slot, and a first slot and a second slot which are respectively bent and extended from two ends of the main body straight slot to the same side, the first slot and the second slot are perpendicular to the main body straight slot, and the antenna slot is close to the first side surface relative to the second side surface; and

the first side surface is used for adsorbing the handwriting pen, and when the handwriting pen is adsorbed on the first side surface, the handwriting pen is positioned on the side face of the main body straight line gap.

2. The terminal of claim 1, wherein the terminal comprises a base station,

the antenna slot is disposed on one of the two major surfaces.

3. The terminal of claim 2, wherein the first major surface where the antenna slot is located is rectangular, the first side surface and the second side surface being connected to the first major surface on a long side of the rectangle, wherein the length of the stylus is less than the length of the long side of the rectangle.

4. The terminal of claim 1, wherein the antenna slot is disposed proximate a rear housing of the terminal.

5. The terminal of claim 1, wherein the terminal comprises a base station,

the antenna slot is U-shaped.

6. The terminal of claim 1, wherein the terminal comprises a base station,

the antenna slot is "Type "of the material.

7. The terminal according to any one of claims 1 to 6, characterized in that,

when the stylus is adsorbed on the first side surface, the directivity coefficient of the Wi-Fi antenna device is smaller than 7.5dBi.

8. The terminal of claim 7, wherein the terminal comprises a base station,

when the stylus is adsorbed on the first side surface, the directivity coefficient of the Wi-Fi antenna device is close to 3.5dBi.

9. A terminal, comprising:

the terminal comprises a terminal body part, a first connecting part and a second connecting part, wherein the terminal body part comprises an upper shell, a lower shell and a side shell which are opposite, the side shell is connected between the upper shell and the lower shell in the circumferential direction, the side shell comprises a first side shell and a second side shell which are opposite, and a rotating shaft area is arranged at the first side shell of the terminal body part;

the display screen is connected to the terminal main body part in the rotating shaft area in a rotating shaft mode; and

Wi-Fi antenna device, set up on the terminal main part, wi-Fi antenna device has closed slot antenna, closed slot antenna's antenna gap includes main part straight line gap and respectively from main part straight line gap both ends to same side first gap and second gap that buckle and extend, first gap and second gap all perpendicular to main part straight line gap,

the antenna slot is a slot on the first side shell, or the antenna slot is a slot of a conductive plate arranged on the first side shell.

10. The terminal of claim 9, wherein the terminal comprises a base station,

the display surface of the display screen faces the upper shell of the terminal main body part in the storage state;

the upper housing of the terminal body part is a floor electrically connected with the Wi-Fi antenna device.

11. The terminal of claim 9, wherein the terminal comprises a base station,

the antenna slot is U-shaped.

12. The terminal of claim 11, wherein the terminal comprises a base station,

the antenna slot is "Type "of the material.

13. Terminal according to claim 11 or 12, characterized in that,

the end of the antenna slot is positioned at one side of the antenna slot, which is close to the upper housing of the terminal body.

14. The terminal of claim 9, wherein the terminal comprises a base station,

the display screen is positioned on the side face of the main body straight line gap.

15. The terminal of claim 9, wherein the terminal comprises a base station,

the directivity coefficient of the Wi-Fi antenna device is close to 5.2dBi.